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3rd Grade Magnetism and Electricity Unit Student Misconceptions Common Student Misconceptions about Magnetism and Electricity • All metals are attracted to magnets. Addressed in Magnet Activity 2 • All silver colored items are attracted to a magnet. Addressed in Magnet Activity 2 • While magnetism may be able to pass through paper, it cannot pass through wood, a notebook, a table, or other thicker materials. Addressed in Magnet Activity 3 • The size of a magnet determines its strength. Addressed in Magnet Activity 4 • A magnetic field is a two dimensional pattern of line surrounding a magnet, not a three-dimensional field of force. Should be addressed in a discussion during Magnet Activity 5 • If wires are connected to a battery and bulb, no matter where, a complete circuit is made. Addressed in Electricity Lessons 2, 3, 5, 6, and 7 Sources of Students’ Confusion and Misconceptions • It is difficult for students to accept that aluminum, for example, a metal that seems very much like iron, is not attracted to a magnet. • Materials such as a stack of paper, wood, plastic, and glass are tangible barriers, unlike air. It is difficult for students to accept that magnetic fields can penetrate these tangible barriers. • Relating magnetic force, which acts at a distance, to a push or pull, where contact is required, may cause difficulty. Source: Stepans, J. (1996). Targeting students’ science misconceptions. Idea Factory: Riverview, FL.